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Selecting a row of pandas series/dataframe by integer index
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What if you wanted the 2nd AND 3rd AND 4th row?
– FaCoffee
Nov 7 '16 at 20:36
1
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Access multiple elements of list knowing their index
...ntains element with index 1, 2, 5, from given list [-2, 1, 5, 3, 8, 5, 6]. What I did is:
9 Answers
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Is duplicated code more tolerable in unit tests?
...ll/nuget package has 3rd party consumers, it doesn't have to be a web api. What I referred to is that it's very common to declare public classes and members that are not supposed to be used directly by library consumers (or at best make them internal and annotate assembly with InternalsVisibleToAttr...
Client-server synchronization pattern / algorithm?
...ly numbering every change. That way a client can make a trivial request ("What revision should I have?") before attempting to synchronize. And even then, the query ("All deltas since 2149") is delightfully simple for the client and server to process.
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How can I exclude one word with grep?
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what if I want to exclude N lines after the line with "unwanted word" as well? -v 'unwanted_word' --after N doesn't help because it INCLUDES the line and N lines after.
– Andrey Regentov
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open read and close a file in 1 line of code
...ted, it's better practice to explicitly close it for various reasons.
So, what you can do to keep it short, simple and explicit:
with open('pagehead.section.htm','r') as f:
output = f.read()
Now it's just two lines and pretty readable, I think.
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Error:(1, 0) Plugin with id 'com.android.application' not found
...This error is the first thing you see when starting a new project. I mean, what were they thinking!?
– BdR
Mar 27 '15 at 14:04
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Pandas percentage of total with groupby
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What's going on here? As I understand it, x is a table of some kind, so 100 * x doesn't intuitively make sense (especially when some of the cells contain strings like AZ, ...).
– dhardy
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LINQ order by null column where order is ascending and nulls should be last
...ice)
.Select(p => p);
This is emphatically not what you want. This sorts by Product.LowestPrice.HasValue in descending order and then re-sorts the entire collection by Product.LowestPrice in descending order.
What you want is
var products = _context.Products
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How to define an enum with string value?
...As far as I know, you will not be allowed to assign string values to enum. What you can do is create a class with string constants in it.
public static class SeparatorChars
{
public static String Comma { get { return ",";} }
public static String Tab { get { return "\t,";} }
public sta...